import tools as Tools
import data as Data

screen = Tools.screen
Actor = Tools.Actor
Animation = Tools.Animation

class Main:
    def __init__(self):
        Tools.Debug(3,'Part9')
    def Enter(self):
        self.Pic4 = Actor('pic4',[Tools.CentralX(),Data.HEIGHT+150])
        Animation(self.Pic4,'accel_decel',2,None,y=Tools.CentralY()+60)
    def Update(self):
        screen.fill((0,0,0))
        self.Pic4.draw()
        screen.draw.text("你应该已经掌握了平面直角坐标系及其上点的坐标.",(100,100),"osans4.ttf")
        screen.draw.text("让我们看看平面直角坐标系中一些特殊点坐标的特征.",(100,150),"osans4.ttf")